CN115519166A - Automatic profiling edge milling machine - Google Patents

Abstract

The invention provides an automatic imitation-shaped edge milling machine, which fixes the formwork and the workpiece to be processed by selecting the down-pressing cylinder and the rotating down-pressing cylinder, and uses the pulling cylinder to drive the end of the imitation raw rod assembly to be close to the template to realize the formwork and the workpiece to be processed Reliable fixation; and then by relying on the threaded rear end of the raw rod assembly and the nut to adjust the up and down, front and rear positions of the imitated rod, the arc-shaped hole on the second fixed plate can realize the angle adjustment of the milling cutter, and then the two cooperate All-round adjustment of the processing process can be realized; different types of designs at the front end of the profiling positioning rod device can meet the processing requirements of different shapes and types of templates; at the same time, the invention can also collect and recycle metal chips under cutting, which is green and environmentally friendly.

Description

An automatic imitation edge milling machine

technical field

The invention relates to the field of die-casting processing, especially the field of processing by imitation.

Background technique

In industrial production, after the gate and slag bag are removed, there are still many protruding sections of die castings, and there are appearance problems such as flashes, burrs, and cracks in the outline. Use a milling cutter that rotates at high speed to imitate shape milling to cut off excess parts and process a smooth surface.

Die castings generally do not have high requirements for the accuracy of the appearance and size, and the appearance and contour are smooth and flat. Therefore, the die castings produced by the die casting machine mold generally remove the gate and slag bag first, and then process the appearance problems such as protruding sections, flashes, burrs, and cracks in the die castings. After the stamping and trimming of the punch die, the cut surface of the die casting will still be relatively rough, which cannot meet the surface roughness requirements of subsequent processes such as baking paint, electroplating, and anode.

In actual production, CNC machine tools are generally used for smaller round die-casting parts; for die-casting parts with square, polygonal or irregular shapes, because they generally have a demoulding slope, the cost of CNC processing is relatively high. Most factories use manual grinding for processing. The basic process includes: first use an edge grinder to grind the gate position, and then use small grinding tools to manually grind other positions. The traditional technological process has outstanding problems such as low production efficiency and high cost. Some factories are also exploring the use of robots for grinding operations. Although the production efficiency has been improved to a certain extent, the application of robots has also increased the operating costs of enterprises, and there is still the problem of dust pollution.

Contents of the invention

In view of the above problems, the present invention provides a device that automatically relies on an imitation edge milling machine instead of manual grinding. Through the high-speed rotating milling cutter cutting die-casting gates, protruding sections of slag ladles, flashes, burrs, tortoise cracks, etc., process a smooth and flat appearance surface, replace manual grinding, and improve work efficiency; no need for punching The products are directly processed by imitation edge milling machines, which can save the use of punching machines. At the same time, the present invention can also collect and recycle metal shavings under cutting, which is environmentally friendly.

The technical scheme that the present invention solves its technical problem is:

An automatic imitation shape edge milling machine, including installation and fixing components, profiling processing components, control components and cooling recovery components, characterized in that: the installation and fixing components include a pressing cylinder, a gantry frame, a rotating pressing cylinder, a working Panel, structural frame, flange bearing seat, rotating shaft, pulling cylinder, brake motor with gearbox, belt, pulley, cam and support plate, wherein the structural frame includes four columns, a horizontal rectangular frame and two supporting feet, along There are two horizontal beams parallel to the short side of the horizontal rectangular frame. The working panel is fixed horizontally above the four columns. The gantry is set above the working panel near the middle of the horizontal rectangular frame. Parallel, the down-pressing cylinder is set in the middle of the gantry beam, the rotary down-pressing cylinder and the pulling cylinder are respectively set on the inner side of the gantry pillar, and the flange bearing seat is set above the working panel, and its center line is in line with the central axis of the down-pressing cylinder A cam, a pulley and a brake motor with a gearbox are arranged under the working panel. The rotating shaft passes through the flange bearing seat, the cam, and the axis of the pulley in sequence and is fixedly connected with the cam and the pulley. The brake motor with a gearbox drives the pulley, the cam and the pulley through a belt. The rotating shaft rotates; the profiling processing components include the profiling positioning rod device, the first fixed plate, the lifting adjuster, the column with the rack, the beam, the counterweight, the second fixed plate, the main shaft motor, the coupling, the main shaft, the knife Shank chuck, milling cutter, connecting handle, mounting plate; the lifting regulator is fixedly installed through the mounting plate and the support plate on which the fixed component is installed. The lifting regulator can drive the column with rack to move up and down, and the beam is installed on the rack with rack A counterweight is installed at the top of the column and one end of the beam, and a first fixed plate is fixedly installed at the other end. There is a circular through hole on the upper end of the first fixed plate. Threaded holes are arranged around the circular through hole. The centers of the threaded holes are located in a circle. On the same circle with the center of the through-hole as the center of the circle, a long hole is opened at the lower end of the first fixed plate, the profiling positioning rod device is installed on the first fixed plate through the long hole, and the second fixed plate is installed on the first fixed plate Above, the main shaft motor, main shaft and tool holder chuck are installed on the second fixed plate, the main shaft motor drives the main shaft and the tool holder chuck to rotate through the coupling, the milling cutter is installed on the tool holder chuck, and the copy positioning rod device The two sides of the rear end are milled parallel to the plane and equipped with nuts; the connecting handle is set on the side of the tool holder chuck under the beam, and the connecting handle is connected to the pull ring that pulls the cylinder piston rod; the control component is set outside the working panel; the cooling recovery component Set under the horizontal rectangular frame.

Preferably, the control assembly includes a limit switch, a photoelectric protection switch, a start button, an emergency stop button and a control electric box, wherein the start button and the emergency stop button are arranged on the work panel, and the control electric box is fixedly connected or externally connected in the form of a wire On the side of the working panel; the limit switch is set under the working panel and cooperates with the cam to complete the counting of working cycles.

Preferably, the cooling recovery assembly includes a water tank, a water pump and a chip hopper, rollers are arranged under the water tank, and the water pump extracts the coolant in the water tank to cool the working milling cutter, and the coolant with metal shavings passes through the chip hopper. The filter is filtered, the coolant re-enters the water tank for recycling, and the chip collecting bucket collects and recycles metal chips generated during processing.

Preferably, the connecting hole on the second fixed plate is a concentric arc hole, and the back of the second fixed plate is provided with a fixed shaft, which is located at the center of the concentric arc hole, and the fixed shaft rotates with the top of the first fixed plate. The circular through hole fits, so that the second fixed plate can rotate along the fixed rotating shaft.

Preferably, the control device further includes a control box, on which a liquid crystal display is arranged, and the control circuit in the control box adopts a PLC program for process control.

Preferably, a waterproof bearing is installed in the front end rod of the profiling positioning rod device, and the two ends of the bearing are positioned by circlips.

Preferably, the front end of the profiling positioning device is equipped with a bolt bearing or a bearing installed on the shaft.

Preferably, a waterproof bearing is installed in the front rod of the profiling positioning device, and the outer ring of the bearing protrudes from the front and left and right sides.

Compared with the prior art, the present invention has the following advantages:

1. Simple structure and reasonable design. The template and the workpiece to be processed of the profiling edge milling machine are easy to install; relying on the imitation shape rod device to cooperate with the milling cutter, the efficiency is high; making full use of the compressible characteristics of the gas to select the cylinder to fix the template and the workpiece to be processed, and use the pulling cylinder to drive the imitation The end of the raw rod assembly is against the template.

2. Easy to adjust and strong adaptability. The rear end of the imitation rod assembly can be threaded and the nut can be adjusted to adjust the up and down, front and rear positions of the imitation rod, and the arc-shaped hole on the second fixing plate can realize the angle adjustment of the milling cutter. The combination of the two can realize the all-round processing process Adjustment; different types of designs at the front end of the profiling positioning rod device can meet the processing requirements of different shapes and types of templates, and the overall adaptability is greatly improved compared with the existing technology.

3. Can realize automatic and continuous processing. The control component can realize the automatic processing after fixing the template and the components to be processed, and the cooling recovery component can realize the cooling of the milling cutter during the processing.

4. Green environmental protection, good economy. The cooling recovery component can recycle the metal shavings after processing, and reduce the debris mixed into the air during processing, which is environmentally friendly and economical.

Description of drawings

Figure 1 is the overall axonometric view

Figure 2 is the installation of fixed components

Figure 3 is a partial enlargement of the installation and fixing components

Figure 4 is based on the front side of the imitation shaped component

Figure 5 is the rear side of the imitation shaped component

Figure 6 is the control device and cooling recovery device

Figure 7 is a schematic diagram of the connection between the handle and the pulling cylinder

Figure 8 is the front end of the A-type profiling positioning rod device

Figure 9 is the front end of the B-type profiling positioning rod device

Figure 10 is the front end of the C-type profiling positioning rod device

Figure 11 is a schematic diagram of the control box connection

Figure 12 is a schematic diagram of the first fixed plate and the second fixed plate

Figure 13 is a schematic view of the back of the first fixed plate and the second fixed plate

Reference numerals: installation and fixing assembly 1, profiling processing assembly 2, control assembly 3, cooling recovery assembly 4, downpressing cylinder 101, gantry frame 102, rotating downpressing cylinder 103, working panel 104, structural frame 105, flange bearing Seat 106, rotating shaft 107, pulling cylinder 108, belt gearbox brake motor 109, belt 110, belt pulley 111, cam 112, support plate 113, profiling positioning rod device 201, first fixed plate 202, lifting regulator 203, belt Rack column 204, beam 205, counterweight 206, second fixed plate 207, main shaft motor 208, shaft coupling 209, main shaft 210, tool handle chuck 211, milling cutter 212, connection handle 213, mounting plate 214, limit Position switch 301, photoelectric protection switch 302, start button 303, emergency stop button 304, control electric box 305, liquid crystal display 306, water tank 401, water pump 402, crumb collecting bucket 403.

detailed description

Now with reference to the accompanying drawings, the specific embodiments of the present invention will be further described.

As shown in Figure 1-3, before batch processing of die-casting products, the template is installed on the platform of the rotating shaft 107. The template is provided with a positioning device to prevent the product from moving. The outline size of the template is the same as that of the product after processing. The same scaling can also be achieved by adjusting the position or angle of the profiling positioning rod device 201 . Put the casting to be processed above the template, adjust the lifting regulator 203, make the height of the milling cutter 212 and the die casting in a suitable position, make the circular rotating shaft of the front end of the profiling positioning rod device 201 closely contact with the outer edge of the template, and adjust the second The inclination angle of the fixed plate 202 keeps the inclination of the milling cutter 212 consistent with the contour of the casting to be processed. The down-press cylinder 101 installed on the gantry 102 and the rotary down-press cylinder 103 on the work panel 104 are used to compress the product, and it is reasonable to choose to use the down-press cylinder 101 or the rotary down-press cylinder 103, that is, the product with a larger shape is used to press down Press the air cylinder 101, on the contrary, the products with relatively small profile use the rotary press air cylinder 103.

Rotating shaft 107 is installed together with flange bearing seat 106, and skeleton oil seal dustproof and waterproof is installed above, and the inside is equipped with bearing connection. The rotating shaft 107 runs through the flange bearing seat 106, the upper end is higher than the flange plane, has screw holes, and a positioning shaft protrudes from the center, which is convenient for installing the formwork. A cam 112 and a belt pulley 111 are installed through the lower end. The brake motor 109 with gearbox drives the rotating shaft 107 to rotate through the belt 110 and the pulley 111, and the limit switch 301 is touched once by the cam 112 every time it rotates one week.

As shown in Figure 4-5, the contact surface between the front end surface of the profiling positioning rod device 201 and the outer edge of the template is circular or spherical, the front end is equipped with a bearing, the two sides of the bearing are equipped with snap springs, the inner ring of the bearing is equipped with a shaft, the middle and rear ends Some of them are threaded and equipped with nuts for adjustment. Both sides are milled out in parallel and planes are assembled and fixed in the long holes of the first fixing plate 202, which can be adjusted up and down. The surface of the copy positioning rod device 201 is close to the outer edge of the template. , the front end surface is close to the outside of the template and rolls or slides along the surface, and the high-speed rotating milling cutter maintains the same trajectory as it.

The lower end of the first fixed plate 202 has a strip hole, and the upper end is installed on one end of the cross beam 205, and a circular through hole is arranged in the center, and a bearing sleeve is installed in the through hole, and screw holes are arranged around the through hole. There is a positioning shaft on the back of the second fixed plate 207 lower end, and there is an arc hole around the shaft. The second fixed plate 207 is installed on the first fixed plate 202, which can be adjusted to a certain angle. The profiling positioning rod is installed on the first fixed plate 202. device 201 . A main shaft motor 208 , a shaft coupling 209 , a main shaft 210 , a tool handle chuck 211 , and a milling cutter 212 are installed on the second fixed plate 207 .

As shown in Figure 6, the imitation-shaped milling and burring machine is equipped with a water tank 401, a water pump 402, a chip collection bucket 403, and the chip collection bucket 403 is used to collect metal chips. Processed metal shavings are washed away by the cooling liquid and collected by the chip collecting bucket 403, and the cooling liquid flows into the water tank 401 for recycling.

As shown in Figure 7, the counterweight 206 is installed on the other end of the crossbeam 205, the upper end of the column 204 with the rack is connected with the crossbeam 205 by a bearing, the lower end is connected with the lifting regulator 203, and the connecting handle 213 is installed on the crossbeam 205 and connected with the pulling cylinder 108 The ring at the top of the piston rod is connected.

The circular or spherical shape of the front end of the profiling positioning rod device 201 of the present invention generally has three styles.

As shown in Figure 8, a waterproof bearing is installed in the A-type front end rod, and the two ends of the bearing are positioned by snap springs. The diameter of the protruding part of the bearing shaft is relatively small, and the outer diameter of the shaft is close to the outer edge of the template, and the processed shape is more complicated, such as products with more concave and convex parts and smaller R angles.

As shown in Figure 9, the B-type front end is equipped with a bolt bearing or a bearing installed on the shaft. Make the outer circle of the bearing close to the outer edge of the template, and the processed shape is relatively regular, such as square, round, and regular polygonal products.

As shown in Fig. 10, the waterproof bearing is housed in the C-type front end rod, and the outer ring of the bearing protrudes from the front and the left and right sides, so that the outer circular surface of the bearing and the outer edge of the template are close to each other, and the products with a diameter smaller than the rotating shaft 107 are processed.

As shown in Figure 11, control device of the present invention can be provided with control box 305, is provided with liquid crystal display 306 on the control box, and the control circuit in the control box adopts PLC program to carry out process control. The control box can be connected with the work panel through a control cable, and can also be fixed on the side of the work panel, so as to reduce the overall space occupation of the present invention.

As shown in Figure 12-13, there is a through hole at the upper end of the first fixing plate 202, and threaded holes are arranged around the through hole. The strip hole, the profiling positioning rod device 201 is installed on the first fixed plate 202 through the elongated hole, the second fixed plate 207 is installed above the first fixed plate 202, and the connecting holes on the second fixed plate are concentric arc holes. And the back side of the second fixed plate is provided with a fixed rotating shaft, which is located at the center of the concentric arc control circle.

The overall working process is as follows: After adjusting the imitation edge milling machine, press the start button 303, the control circuit will energize the air valve of the downward pressure cylinder 101, and the air circuit of the downward pressure cylinder 101 will change direction, and then push the piston of the downward pressure cylinder 101 The rod descends to compact the product. The control circuit energizes the air valve of the pulling cylinder 108, the gas circuit of the pulling cylinder 108 changes direction, and then pushes the piston rod of the pulling cylinder 108 to retract, pulling the connecting handle 213 installed on one end of the crossbeam 205, driving each part on the crossbeam 205 to The shaft center of the column 204 with the rack is the center of circle and rotates until the small axis outer edge of the front end of the profiling positioning rod device 201 rotates and the outer edge of the template closes to stop moving. Before close to the template, the control circuit makes the main shaft motor 208 energized to start, driving the coupling 209, the main shaft 210, the tool holder chuck 211, and the milling cutter 212 rotate at a high speed; Let the knife cool.

When the front end of the profiling positioning bar device 201 rotates the small shaft against the outer edge of the template, the milling cutter 212 rotating at a high speed above also leans against the outline of the casting to be processed. Because the gas is compressible, the small shaft at the front end of the profiling positioning rod device 201 is pulled by the pulling cylinder 108 close to the outer edge of the formwork, and passively rotates as the shape of the formwork changes, and the high-speed rotating milling cutter 212 also moves with it The track moves synchronously, and the piston rod of the pulling cylinder 108 also passively expands and contracts as the profile of the formwork changes, cutting off the redundant part protruding from the outer edge of the formwork. The control circuit starts the motor with the gearbox brake motor 109, drives the belt 110, the pulley 111, the rotating shaft 107, and the cam 112 to rotate in the required direction. When the template rotates one circle, the limit switch 301 is touched by the cam 112 to complete one circle Processing counting, the control circuit makes the brake motor 109 with gearbox power off, the water pump 402 is powered off, the rotating shaft 107 stops rotating, the air valve of the pulling cylinder 108 is powered off, the gas path of the pulling cylinder 108 is reversed, and the piston of the pulling cylinder 108 The rod is stretched out, so that each part on the crossbeam 205 is retreated and reset. After the high-speed rotating milling cutter 212 leaves the casting to be processed, the main shaft motor 208 is powered off, and the milling cutter 212 stops rotating. The gas path of 101 is reversed, the piston rod of the downward pressure cylinder 101 rises and resets, and a working cycle is completed. Take off the processed castings, put the castings to be processed again, and carry out the next working cycle. The emergency stop button 304 and the photoelectric protection switch 302 will make the control circuit emergency stop when encountering abnormalities and dangers. The entire circuit control is controlled by the PLC program. The rotational speed of the rotating shaft 107 is controlled by the frequency converter, and the control parameters are set or changed by the touch screen.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any way. All simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still belong to the technical aspects of the present invention. within the scope of protection of the scheme.

Claims (8)

1. An automatic imitation shape edge milling machine, including installation and fixing components, profiling processing components, control components and cooling recovery components, characterized in that: the installation and fixing components include a press-down cylinder, a gantry frame, and a rotary press-down cylinder , work panel, structural frame, flange bearing seat, rotating shaft, pulling cylinder, brake motor with gearbox, belt, pulley, cam and support plate, wherein the structural frame includes four columns, a horizontal rectangular frame and two support feet , two horizontal beams are arranged along the direction parallel to the short side of the horizontal rectangular frame, the working panel is horizontally fixed above the four columns, the gantry is set above the working panel near the middle of the horizontal rectangular frame, the beam of the gantry and the length of the working panel The sides are kept parallel, the down-pressing cylinder is set in the middle of the gantry beam, the rotating down-pressing cylinder and the pulling cylinder are respectively set on the inner side of the gantry pillar, and the flange bearing seat is set above the working panel, and its center line is in line with the central axis of the down-pressing cylinder Collinear, the cam, pulley and brake motor with gearbox are arranged under the working panel, the rotating shaft passes through the flange bearing seat, the cam, the axis of the pulley in turn and is fixedly connected with the cam and pulley, and the brake motor with gearbox drives the pulley through the belt, The cam and the rotating shaft rotate; the profiling processing assembly includes the profiling positioning rod device, the first fixed plate, the lift adjuster, the column with the rack, the beam, the counterweight, the second fixed plate, the spindle motor, the coupling, the spindle , shank chuck, milling cutter, connecting handle, and mounting plate; the lifting regulator is fixedly installed through the mounting plate and the support plate on which the fixed component is installed. The lifting regulator can drive the column with rack to move up and down, and the beam is installed on the The top of the column of the bar, the counterweight is installed at one end of the beam, and the first fixed plate is fixedly installed at the other end. There is a circular through hole on the top of the first fixed plate. Threaded holes are arranged around the circular through hole, and the centers of the threaded holes are located at On the same circle with the center of the circular through hole as the center, a long hole is opened at the lower end of the first fixing plate, and the profiling positioning rod device is installed on the first fixing plate through the long hole, and the second fixing plate is installed on the first Above the fixed plate, the main shaft motor, the main shaft and the tool holder chuck are installed on the second fixed plate, the main shaft motor drives the main shaft and the tool holder chuck to rotate through the coupling, the milling cutter is installed on the tool handle chuck, and the copy positioning rod The two sides of the rear end of the device are parallel milled planes and are equipped with nuts; the connecting handle is set on the side of the tool handle chuck under the beam, and the connecting handle is connected with the pull ring that pulls the piston rod of the cylinder; the control component is set on the outside of the working panel; cooling The recovery component is arranged below the horizontal rectangular frame. 2. The automatic imitation-shaped edge milling machine according to claim 1, wherein the control assembly includes a limit switch, a photoelectric protection switch, a start button, an emergency stop button and a control electric box, wherein the start button and the emergency stop The stop button is set on the working panel, and the control electric box is fixedly connected or externally connected to the side of the working panel in the form of wires; the limit switch is set under the working panel and cooperates with the cam to complete the counting of working cycles. 3. The automatic imitation shape edge milling machine according to claim 1 or 2, characterized in that, the cooling recovery assembly includes a water tank, a water pump and a chip collecting bucket, rollers are arranged under the water tank, and the water pump extracts the cooling liquid in the water tank To cool the milling cutter in the working state, the coolant with metal shavings is filtered through the filter of the swarf hopper, the coolant re-enters the water tank for recycling, and the swarf hopper collects and recycles the metal shavings generated during processing. 4. The automatic imitation edge milling machine according to claim 3, characterized in that the connection holes on the second fixed plate are concentric arc-shaped holes, and the back side of the second fixed plate is provided with a fixed shaft, which is located at At the center position of the concentric arc-shaped hole, the fixed shaft rotates and cooperates with the circular through hole on the top of the first fixed plate, so that the second fixed plate can rotate along the fixed rotating shaft. 5. The automatic imitation edge milling machine according to claim 4, characterized in that, the control device also includes a control box, the control box is provided with a liquid crystal display, and the control circuit in the control box adopts a PLC program for processing control. 6. The automatic imitation-shaped edge milling machine according to claim 4, characterized in that, a waterproof bearing is installed in the front end rod of the said profiling positioning rod device, and the two ends of the bearing are positioned by retaining springs. 7. The automatic imitation edge milling machine according to claim 4, characterized in that, the front end of the profiling positioning device is equipped with a bolt bearing or a bearing installed on the shaft. 8. The automatic imitation-shaped edge milling machine according to claim 4, characterized in that, the front-end rod of the said profiling positioning device is equipped with a waterproof bearing, and the outer ring of the bearing protrudes from the front and left and right sides.

Images